(1) Simplify (212 * 212 + 312 * 312 )


  1. 132288
  2. 142088
  3. 142188
  4. 142288

(2) Find the unit digit in (544)102+(544)103


  1. 2
  2. 4
  3. 0
  4. 1

(3) What least value should be replaced by * in 223*431 so the number become divisible by 9


  1. 3
  2. 4
  3. 5
  4. 6

(4) How many terms are there in 2,4,8,16,....,1024


  1. 7
  2. 8
  3. 9
  4. 10

(5) Simplify 586645 * 9999


  1. 5865863355
  2. 5665863355
  3. 4865863355
  4. 4665863355